
ISO 6508-3 - METALLIC MATERIALS - ROCKWELL HARDNESS TEST (SCALES A,B,C,D,E,F,G,H,K,N,T) - PART 3: CALIBRATION OF REFERENCE BLOCKS
出版:British Standards Institution

专家解读视频
ISO 6508-3 - METALLIC MATERIALS - ROCKWELL HARDNESS TEST (SCALES A,B,C,D,E,F,G,H,K,N,T) - PART 3: CALIBRATION OF REFERENCE BLOCKS
出版:British Standards Institution
专家解读视频